diff --git a/.gitignore b/.gitignore
index 9f93633..24320ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,7 +10,6 @@ dist/
 downloads/
 eggs/
 .eggs/
-lib/
 lib64/
 parts/
 sdist/
diff --git a/lib/caddy_windows_amd64.exe b/lib/caddy_windows_amd64.exe
new file mode 100644
index 0000000..b88607c
Binary files /dev/null and b/lib/caddy_windows_amd64.exe differ
diff --git a/lib/convert.py b/lib/convert.py
new file mode 100644
index 0000000..e0f7bfd
--- /dev/null
+++ b/lib/convert.py
@@ -0,0 +1,56 @@
+import subprocess
+from pathlib import Path
+
+
+def convert_to_h264(input_path: str, output_path: str = None) -> str:
+    """
+    将视频文件转码为 H.264 编码格式
+
+    Args:
+        input_path: 输入视频文件路径（相对或绝对路径）
+        output_path: 输出视频文件路径（可选，默认为输入文件同名_h264.mp4）
+
+    Returns:
+        转码后的视频文件路径
+
+    Raises:
+        FileNotFoundError: 输入文件不存在
+        subprocess.CalledProcessError: FFmpeg 转码失败
+    """
+    input_path_all = Path("input/" + input_path).resolve()
+    output_path_all = Path("vid_h264/" + input_path).resolve()
+
+    if not input_path_all.exists():
+        raise FileNotFoundError(f"输入文件不存在：{input_path}")
+
+    print(f"开始转码：{input_path_all}")
+    # if output_path is None:
+    output_path = str(output_path_all.with_name(f"{input_path_all.stem}_h264.mp4"))
+    # else:
+    #     output_path = Path(output_path).resolve()
+
+    cmd = [
+    "ffmpeg",
+    "-i", str(input_path_all),
+    "-c:v", "h264_nvenc",  # NVIDIA 硬件编码
+    "-c:a", "aac",
+    "-b:a", "128k",
+    "-y",
+    str(output_path)
+]
+
+    result = subprocess.run(cmd, capture_output=True, text=True)
+
+    if result.returncode != 0:
+        raise subprocess.CalledProcessError(
+            result.returncode,
+            cmd,
+            result.stdout,
+            result.stderr
+        )
+    print(f"转码完成：{output_path}")
+    return str(output_path)
+
+if __name__ == "__main__":
+    convert_to_h264("VID_20251104_085655_024.AVI", "vid_h264/VID_20251104_085655_024_h264.mp4")
+    # convert_to_h264("input/short.AVI", "vid_h264/short_h264.mp4")
diff --git a/lib/ffmpeg.exe b/lib/ffmpeg.exe
new file mode 100644
index 0000000..70cae46
Binary files /dev/null and b/lib/ffmpeg.exe differ